Distributed differential schemes for cooperative wireless networks

Cho Woong, Yang Liuqing

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Scopus citations

Abstract

In cooperative wireless networks, virtual antenna arrays formed by distributed network nodes can provide cooperative diversity. Obviating channel estimation, differential schemes have long been appreciated in conventional multi-input multi-output (MTMO) communications. However, distributed differential schemes for general cooperative network setups have not been thoroughly investigated. In this paper, we develop and analyze two distributed differential schemes using both decode-and-forward (DF) and amplify-and-forward (AF) relaying protocols. For each scheme and relaying protocol combination, we derive the optimum maximum likelihood (ML) decision rule and its low-complexity suboptimum alternative. Simulations confirm that both schemes provide full diversity gain with either DF or AF relaying protocols. In addition, we carry out performance and rate comparisons between the two distributed differential schemes and preliminary investigations on the optimal relay positioning for the DF and AF relaying protocols.

Original languageEnglish (US)
Title of host publication2006 IEEE International Conference on Acoustics, Speech, and Signal Processing - Proceedings
PagesIV61-IV64
StatePublished - 2006
Externally publishedYes
Event2006 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2006 - Toulouse, France
Duration: May 14 2006May 19 2006

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume4
ISSN (Print)1520-6149

Other

Other2006 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2006
CountryFrance
CityToulouse
Period5/14/065/19/06

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